linux-kernel - Re: [PATCH v3 19/20] platform/x86: Update alienware-wmi config entries

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Message-ID: <399430a5-eb7f-48b0-be4a-e1b404a200e0@amd.com>
Date: Tue, 7 Jan 2025 15:29:59 -0600
From: Mario Limonciello <mario.limonciello@....com>
To: Kurt Borja <kuurtb@...il.com>, platform-driver-x86@...r.kernel.org
Cc: ilpo.jarvinen@...ux.intel.com, w_armin@....de, hdegoede@...hat.com,
 Dell.Client.Kernel@...l.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 19/20] platform/x86: Update alienware-wmi config
 entries

On 1/5/2025 09:30, Kurt Borja wrote:
> Add config entries for each WMI driver managed by the alienware-wmi
> module to be able to conditionally compile them.
> 
> Reviewed-by: Armin Wolf <W_Armin@....de>
> Signed-off-by: Kurt Borja <kuurtb@...il.com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
> ---
>   drivers/platform/x86/dell/Kconfig         | 30 +++++++++++++++++++----
>   drivers/platform/x86/dell/Makefile        |  4 +--
>   drivers/platform/x86/dell/alienware-wmi.h | 23 +++++++++++++++++
>   3 files changed, 50 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig
> index d09060aedd3f..f8a0dffcaab7 100644
> --- a/drivers/platform/x86/dell/Kconfig
> +++ b/drivers/platform/x86/dell/Kconfig
> @@ -18,15 +18,35 @@ config ALIENWARE_WMI
>   	tristate "Alienware Special feature control"
>   	default m
>   	depends on ACPI
> +	depends on ACPI_WMI
> +	depends on DMI
>   	depends on LEDS_CLASS
>   	depends on NEW_LEDS
> -	depends on ACPI_WMI
> +	help
> +	 This is a driver for controlling Alienware WMI driven features.
> +
> +	 On legacy devices, it exposes an interface for controlling the AlienFX
> +	 zones on Alienware machines that don't contain a dedicated
> +	 AlienFX USB MCU such as the X51 and X51-R2.
> +
> +	 On newer devices, it exposes the AWCC thermal control interface through
> +	 known Kernel APIs.
> +
> +config ALIENWARE_WMI_LEGACY
> +	bool "Alienware Legacy WMI device driver"
> +	default y
> +	depends on ALIENWARE_WMI
> +	help
> +	 Legacy Alienware WMI driver with AlienFX LED control capabilities.
> +
> +config ALIENWARE_WMI_WMAX
> +	bool "Alienware WMAX WMI device driver"
> +	default y
> +	depends on ALIENWARE_WMI
>   	select ACPI_PLATFORM_PROFILE
>   	help
> -	 This is a driver for controlling Alienware BIOS driven
> -	 features.  It exposes an interface for controlling the AlienFX
> -	 zones on Alienware machines that don't contain a dedicated AlienFX
> -	 USB MCU such as the X51 and X51-R2.
> +	 Alienware WMI driver with AlienFX LED, HDMI, amplifier, deep sleep and
> +	 AWCC thermal control capabilities.
>   
>   config DCDBAS
>   	tristate "Dell Systems Management Base Driver"
> diff --git a/drivers/platform/x86/dell/Makefile b/drivers/platform/x86/dell/Makefile
> index d5718ef34c48..8ac9a933c770 100644
> --- a/drivers/platform/x86/dell/Makefile
> +++ b/drivers/platform/x86/dell/Makefile
> @@ -6,8 +6,8 @@
>   
>   obj-$(CONFIG_ALIENWARE_WMI)			+= alienware-wmi.o
>   alienware-wmi-objs				:= alienware-wmi-base.o
> -alienware-wmi-y					+= alienware-wmi-legacy.o
> -alienware-wmi-y					+= alienware-wmi-wmax.o
> +alienware-wmi-$(CONFIG_ALIENWARE_WMI_LEGACY)	+= alienware-wmi-legacy.o
> +alienware-wmi-$(CONFIG_ALIENWARE_WMI_WMAX)	+= alienware-wmi-wmax.o
>   obj-$(CONFIG_DCDBAS)				+= dcdbas.o
>   obj-$(CONFIG_DELL_LAPTOP)			+= dell-laptop.o
>   obj-$(CONFIG_DELL_RBTN)				+= dell-rbtn.o
> diff --git a/drivers/platform/x86/dell/alienware-wmi.h b/drivers/platform/x86/dell/alienware-wmi.h
> index e4b75b1acd10..a810767a0eb7 100644
> --- a/drivers/platform/x86/dell/alienware-wmi.h
> +++ b/drivers/platform/x86/dell/alienware-wmi.h
> @@ -72,10 +72,33 @@ int alienware_wmi_command(struct wmi_device *wdev, u32 method_id,
>   int alienware_alienfx_setup(struct alienfx_platdata *pdata);
>   void alienware_alienfx_exit(struct wmi_device *wdev);
>   
> +#if IS_ENABLED(CONFIG_ALIENWARE_WMI_LEGACY)
>   int __init alienware_legacy_wmi_init(void);
>   void __exit alienware_legacy_wmi_exit(void);
> +#else
> +static inline int alienware_legacy_wmi_init(void)
> +{
> +	return -ENODEV;
> +}
> +
> +static inline void alienware_legacy_wmi_exit(void)
> +{
> +}
> +#endif
>   
> +#if IS_ENABLED(CONFIG_ALIENWARE_WMI_WMAX)
>   int __init alienware_wmax_wmi_init(void);
>   void __exit alienware_wmax_wmi_exit(void);
> +#else
> +static inline int alienware_wmax_wmi_init(void)
> +{
> +	return -ENODEV;
> +}
> +
> +
> +static inline void alienware_wmax_wmi_exit(void)
> +{
> +}
> +#endif
>   
>   #endif